Long-distance quantum communication with atomic ensembles and linear optics

L.-M. Duan, M. D. Lukin, J. I. Cirac () and P. Zoller
Additional contact information
L.-M. Duan: Institut für Theoretische Physik, Universität Innsbruck
M. D. Lukin: Harvard University
J. I. Cirac: Institut für Theoretische Physik, Universität Innsbruck
P. Zoller: Institut für Theoretische Physik, Universität Innsbruck

Nature, 2001, vol. 414, issue 6862, 413-418

Abstract: Abstract Quantum communication holds promise for absolutely secure transmission of secret messages and the faithful transfer of unknown quantum states. Photonic channels appear to be very attractive for the physical implementation of quantum communication. However, owing to losses and decoherence in the channel, the communication fidelity decreases exponentially with the channel length. Here we describe a scheme that allows the implementation of robust quantum communication over long lossy channels. The scheme involves laser manipulation of atomic ensembles, beam splitters, and single-photon detectors with moderate efficiencies, and is therefore compatible with current experimental technology. We show that the communication efficiency scales polynomially with the channel length, and hence the scheme should be operable over very long distances.

Date: 2001
References: Add references at CitEc
Citations: View citations in EconPapers (13)

Downloads: (external link)
https://www.nature.com/articles/35106500 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:414:y:2001:i:6862:d:10.1038_35106500

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/35106500

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().